Securline Marker II/Superfrost Pens

From:Richard Cartun <>

I think this problem was discussed previously, but we continue to have problems with the Securline Marker II/Superfrost pens that we use to label glass slides.  The ink (black & red) does not hold up following immunohistochemical staining.  Is anyone else experiencing this problem?  I contacted the company  (Precision Dynamics Corporation) today, but have not heard back from them.

R. Cartun

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